Police digging up mass graves in western Mexico have now found human remains from at least 54 victims there.

The grim figure released by Mexico's Attorney General's Office Tuesday was the latest since authorities made the startling find this month of dozens of hidden graves during an investigation into the disappearance of two federal agents.

So far, authorities haven't said whether the missing agents' bodies have turned up in the hidden graves found in La Barca, a town near the border of Mexico's Jalisco and Michoacan states.

Prosecutors say they haven't identified the bodies they've found. Some of the victims showed signs of being bound, gagged and tortured, investigators said this week.